<html>
<head>
	<title>fadeIn</title>
	<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.0.js"></script>
	<script type="text/javascript">
		$(document).ready(function(){

			$("button").click(function(){
				$("#div1").fadeIn();
				$("#div2").fadeIn("slow");
				$("#div3").fadeIn(3000);

			});
		});
	</script>
</head>
<body>
<p>演示带有不同参数的 fadeIn() 方法。</p>
<button>点击这里，使三个矩形淡入</button>
<br><br>
<div id="div1" style="width:80px;height:80px;display:none;background-color:red;"></div>
<br>
<div id="div2" style="width:80px;height:80px;display:none;background-color:green;"></div>
<br>
<div id="div3" style="width:80px;height:80px;display:none;background-color:blue;"></div>
</body>
</html>